Home / 27,974.28-38,603.70-15,398.76

Finding the Fourth Proportional to 27,974.28, 38,603.70 and 15,398.76

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Solution

The fourth proportional to 27,974.28, 38,603.70 and 15,398.76 is: 21,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,974.28 : 38,603.70 = 15,398.76 : x
  2. Step 2: Convert to fraction form
    27,974.28/38,603.70 = 15,398.76/x
  3. Step 3: Cross multiply
    27,974.28x = 38,603.70 × 15,398.76
  4. Step 4: Simplify right side
    27,974.28x = 594,449,111.41
  5. Step 5: Solve for x
    x = 594,449,111.41/27,974.28
  6. Step 6: Final answer
    x = 21,249.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.